Senior Water Treatment Operator

Confidential Employer | Seattle, WA

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Posted Date 7/12/2021


Seattle Public Utilities (SPU) has an opportunity for a Senior Water Treatment Operator. The Senior Water Treatment Operator will perform essential duties such as calibration, maintenance, and monitoring of various types of water quality analyzers, chemical feed pumps, on-site sodium hypochlorite generators and other associated water treatment equipment. This position will monitor and treat drinking water within the Seattle Water System and provide support to Water Operations, Distribution & Transmission crews. This position is assigned to SPU's Water Treatment Section and will report to the Water Treatment Crew Chief.

About Seattle Public Utilities:   

Seattle Public Utilities (SPU) is a Community Centered Utility whose mission is to foster healthy people, environment, and economy by partnering with our community to equitably manage water and waste resources for today and future generations. We deliver high quality, vital services, across four major lines of business: providing water, solid waste, drainage and wastewater services for Seattle residents and businesses. In addition, SPU provides drinking water for 1.5 million regional customers in Seattle and other municipalities. Our customers depend on us to deliver high quality, reliable, and cost-conscious utility services and to achieve the highest benefits possible for every investment we make.

SPU commits to Our City Values and Race and Social Justice as core principles that guide our work. We support and hold ourselves accountable to this commitment by eliminating barriers to access and providing employees with equitable opportunities for professional growth and advancement.

Enjoy the following benefits (and more): 

  • Opportunities for career advancement      
  • Family-friendly multi-cultural work environment      
  • Competitive health care plans      
  • Free public transportation options      
  • 10 paid holidays and two (2) additional personal holidays 
  • 12 paid days of vacation per year (increases occur with years of service)      
  • 12 paid days of sick leave per year      
  • Deferred compensation plan      
  • Employer/employee contributions to City pension plan 


Job Responsibilities

  • Operate, calibrate, and initiate repairs to chemical and mechanical equipment (i.e., pumps, motors, valves) for water treatment operations. 
  • Closely monitor water treatment operations using sodium hypochlorite and fluoride and adjust treatment processes to ensure concentrations meet water quality targets. 
  • Operate, calibrate, and maintain on-site sodium hypochlorite generation systems. 
  • Routinely sample, test, and record chemical residuals to ensure compliance with water quality targets. 
  • Assist with the de-chlorination/disinfection of water storage facilities and pipelines.
  • Routinely collect and test water quality samples.
  • Participate in the training of and lead new Water Treatment Operators. 
  • Execute appropriate safety protocols when handling hazardous chemicals and operating water treatment equipment. 



The Ideal Candidate Profile:  

  • Basic knowledge of the principles of water hydraulics and water treatment. 
  • Demonstrated reliability. 
  • Critical thinking skills for problem solving. 
  • Practical understanding of physics.
  • Excellent interpersonal and communications skills. 
  • Experience with SCADA. 
  • Current Water Distribution Manager II Certification. 
  • Ability to work effectively within a multicultural workforce serving a diverse customer base. 


  • Three (3) years' experience in a water utility, treatment, distribution, or transmission, or as a Water Treatment Operator or related field. 


  • One (1) year of education in an approved waterworks/apprenticeship training program OR 6 additional months of relevant experience. 


  • Certification by the State of Washington as a Water Distribution Manager Class II within twelve months of appointment for continued employment.
  • Current and valid Washington State Driver's License. 

Verification of applicant material: 

  • Offers of employment are contingent on verification of information provided by the applicant as part of the application process.


  • Please note this job advertisement is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice. 

Work Environment/Physical Demands:

  • Position requires working some nights, evenings, weekends, and holidays.
  • Employees are frequently required to exercise appropriate safety procedures for work around hazardous chemicals; must be able to properly use a self-contained breathing apparatus.
  • May be required to lift heavy objects up to 50 lbs.
  • At times works alone in a remote, but secure location.
  • Required to climb and work at heights up to 100 feet above ground level.
  • Required to walk, stand, sit, or bend for extended periods of time and work in confined spaces.
  • Required to work outdoors at times, in all types of weather.
  • Mandatory standby duty once trained.
  • Respond to emergency conditions involving equipment failure or power outages. 

Medical Exam

  • SPU’s safety program requires a pre-employment medical assessment as a condition of employment in this position.  


Additional Information

At Seattle Public Utilities, our job is to protect the area's quality of life. We pledge to meet community and environmental needs by:

  • Maintaining some of the nation's best drinking water
  • Preventing sewer backups, flooding, and landslides
  • Helping Seattle residents and businesses be recycling leaders
  • Protecting local waterways and the Sound from sewage overflows and polluted stormwater runoff.

We do this while always keeping in mind that we need to spend customers' money wisely.


We are also making sure that as Seattle grows, it is even better for future generations. A place where:

  • Less garbage is shipped to the landfill.
  • The drinking water is protected.
  • Utility infrastructure is well-built and maintained.
  • And where salmon thrive in healthy waterways.

Seattle is known as a progressive leader in technology, innovation, and the environment.
As an employer, the City of Seattle is a leading local government in environmental stewardship, green building and social justice, making our City what it is today and shaping our future. Our employees play an important role in making this possible.

Learn more about Seattle Public Utilities at our web page


Job Category
Local Government
Career Level

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